Find ph of solution after acid added to ammonia solution
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5.
Expected delivery within 24 Hours
Positrons cannot penetrate matter more than a few atomic diameters, but positron emission of radiotracers can be monitored in medical diagnosis. Explain
A drum has a radius of 0.40 m and a moment of inertia of 4.7 kg · m2. The frictional torque of the drum bearings is 3.0 N · m. A ring at one end of a rope is slipped on a short peg on the rim of the drum,
A solution is prepared by mixing 50.0 mL of 0.17 M Pb(NO3)2 with 50.0 mL of 1.9 M KCl. Calculate the concentrations of Pb2+ and Cl ‾ at equilibrium. Ksp for PbCl2(s) is 1.6 multiplied by 10-5.
A horizontal circular cylinder of diameter D = 0.2m and length 2m is elastically mounted on two springs and towing tank, as illustrated in the figure below.
Two antennas at the same location on earth receive a signal from a satellite directly overhead at altitude h = 36.0 km. Both antennas have been optimized for this purpose and both are observed to receive the signal with equal strength.
Suppose you have a new thermometer called the X thermometer. On the X scale the boiling point of water is 130 degrees X and the boiling point of water is 10 degrees X. At what temperatures will the reading be on the Fahrenheit and the X thermomete
The mechanical errors in the joint and the input/output links can be described by a normal distribution with its mean at any given addressable point, and a standard deviation of 0.25?.
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box.
1929930
Questions Asked
3,689
Active Tutors
1416875
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
In general, what is the relationship between density of earth and temperature? Explain why.
You now turn your attention again to the lower intertidal zone. Individuals of all three species can survive there in the absence of the others
Which of the following occurs during the replication of a DNA molecule? A will be paired with G, and T will be paired with
What degree of invasiveness would you be willing to accept if you were conducting an experiment using brain measures to examine welfare?
Q1. Define extinction. Q2. Name and describe two natural factors that contribute to extinction.
Question: Which of the following is a risk of low crop diversity? Better resistance to climate change Increased number of wild species of the crop
Describe the various layering arrangements and cell shapes of epithelial tissue. What characteristics are common to all epithelial tissues?